The given set of data is as follows; 17, 24, 26, 13 thus, the mean of the data set is 20.
Mean is the ratio of sum of the observations to the total number of observations.
The given set of data is as follows;
17, 24, 26, 13
Mean = sum of the observations / the total number of observations.
[tex]\dfrac{17+ 24+26+13}{4} \\\\\dfrac{80}{4} \\\\20[/tex]
Mean = 20
Learn more about mean here;
https://brainly.com/question/521501
#SPJ2